Need to be able to remove extra traits

My sim got the unflirty trait without my awareness or proper permission. She is not unflirty, she's unlucky. I tried to let my sim do the 7 date thing, but we could not do it with how unlucky she had. We got Vlad, I thought that was cute but not for her and accepted that, but it was the wrong setting. It was blind date to the park. I had to cancel and I brushed off his reaction and tried blind dating again some how in that point, she got unflirty and it was not her fault. I wanted to fix it by deleting unflirty from edit cas thing. I can't get to the extra traits, why set hell on her? the date thing should not count until a successful date happened or give reason they had to stop the date.